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ZoneCO2 Feature

Considering Cascade, Transcritical, Transport, and Heat Pumps

February 11, 2013
By Peter Powell
No Comments

CO2 as a refrigerant in cascade supermarket systems, transcritical applications, transport refrigeration, and heat pumps were among major developments in recent years. Here is a summary of those developments.


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charging a system with R-22

EPA Further Tightens the R-22 Spigot

2013 Allocation Reduced to 39 Million Pounds
February 4, 2013
By Peter Powell
No Comments
It appears as if the spigot of new R-22 available to HVACR contractors has been tightened even more in 2013. Users of the world’s most popular HCFC could expect close to 30 percent less of new R-22 this year than last, according to some reports.


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Commercial Refrigeration Condensing Unit

Emerson Climate Technologies: Commercial Refrigeration Condensing Unit

January 28, 2013
No Comments
The Copeland Scroll™ FFAP Series condensing unit utilizes the Copeland Scroll ZSKA refrigeration compressor (1.5 to 5 hp) and is compatible with a variety of refrigerants, including R-404A, R-134a, R-407C, and R-22. It also has a wide operating range (from -30° to 45°F) of evaporator temperatures. 


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Undercounter, Walk-in Refrigeration Controller

KE2 Therm: Undercounter, Walk-in Refrigeration Controller

January 28, 2013
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Designed to control refrigeration units, the KE2 Temp + Defrost saves time on installation by eliminating the need for both a time clock and defrost thermostat, the company said, requiring only wires to connect power, solenoid, and temperature sensor. 


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Refrigeration Monitoring and Controls System

Heatcraft Worldwide Refrigeration: Refrigeration Monitoring and Controls System

January 21, 2013
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An enhanced monitoring and controls system allows restaurants to actively manage their refrigeration using a web-based solution. The Remote Refrigeration Control (RRC) provides real-time reports and alerts, which empowers users to manage the integrity of their food supply from any location.


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European Commission continues to deal with issues related to HFC refrigerants

Pressure on HFCs Continues in Europe

January 21, 2013
By Peter Powell
No Comments
The European Commission (EC), the executive body of the 25 member countries of the European Union (EU) responsible for proposing legislation, is continuing its efforts to phase down — and in some applications phase out — use of HFC refrigerants in much of Europe.


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heat pumps in refrigeration applications were focus of discussions at Chillventa

What Refrigeration Personnel Can Learn From Heat Pumps

January 21, 2013
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The refrigerator is actually a heat pump, as the method of operation is identical apart from one difference: Heat is extracted from the refrigerator and discharged into the surroundings, whereas the heat pump uses the thermal energy in the surroundings for heating purposes. 


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normal operating system where the highside contains refrigerant in three conditions

Using the P-T Chart to Diagnose Refrigeration, A/C System Problems

January 21, 2013
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The purpose of this article is to not only demonstrate the proper use of the pressure-temperature relationship, but to also illustrate how service technicians can use the P-T chart to thoroughly analyze a refrigeration or air conditioning system.


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Contractor of the Year award

CHC Pack, Refrigeration Training Earn Honors

January 21, 2013
No Comments
A combined heating and cooling (CHC) pack is a design for use in convenience stores. The technological development, along with development of a European Refrigeration Training Academy, earned WR Refrigeration honors at the National ACR Awards in England. 


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Frostlines Header

Are HFCs Down or Out Overseas?

January 21, 2013
By Peter Powell
No Comments
It’s important for readers within the refrigeration industry to be aware of what’s being talked about in Europe, especially from a regulatory standpoint. There is talk of a phaseout of virgin HFC refrigerant production rather than a phasedown.


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